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Biogen
BIIB

Overview Fund Activity

999 hedge funds and large institutions have $36B invested in Biogen in 2023 Q2 according to their latest regulatory filings, with 97 funds opening new positions, 319 increasing their positions, 359 reducing their positions, and 83 closing their positions.

Holders
999
Holders Change
+8
Holders Change %
+0.81%
% of All Funds
15.76%
Holding in Top 10
18
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-5.26%
% of All Funds
0.28%
New
97
Increased
319
Reduced
359
Closed
83
Calls
$555M
Puts
$599M
Net Calls
-$44.6M
Net Calls Change
-$115M

Top Buyers

1
T. Rowe Price Investment Management
1
T. Rowe Price Investment Management
Maryland
$968M
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$752M
3
Amundi
3
Amundi
France
$339M
4
Alyeska Investment Group
4
Alyeska Investment Group
Illinois
$105M
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$1.27B

Top Sellers

1
Envestnet Asset Management
1
Envestnet Asset Management
Illinois
$89.1M
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$321M
3
Marshall Wace
3
Marshall Wace
United Kingdom
$1.44M
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$241M
5
Millennium Management
5
Millennium Management
New York
$12.6M
Name Market Value Shares Shares
Change 		Shares
Change %
Primecap Management
1
Primecap Management
California
$4.56B 16,025,876 +24,710 +0.2%
BlackRock
2
BlackRock
New York
$4.01B 14,065,994 +79,773 +0.6%
Vanguard Group
3
Vanguard Group
Pennsylvania
$3.47B 12,196,436 +38,774 +0.3%
State Street
4
State Street
Massachusetts
$1.96B 6,885,215 +128,215 +2%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$1.52B 5,346,359 -106,529 -2%
JPMorgan Chase & Co
6
JPMorgan Chase & Co
New York
$1.27B 4,471,187 +362,324 +9%
T. Rowe Price Investment Management
7
T. Rowe Price Investment Management
Maryland
$968M 3,399,070 +3,399,070 New
Geode Capital Management
8
Geode Capital Management
Massachusetts
$905M 3,183,679 +80,944 +3%
Fidelity Investments
9
Fidelity Investments
Massachusetts
$752M 2,640,521 +887,907 +51%
ClearBridge Investments
10
ClearBridge Investments
New York
$521M 1,827,664 -37,081 -2%
Northern Trust
11
Northern Trust
Illinois
$455M 1,597,598 -73,691 -4%
Bank of New York Mellon
12
Bank of New York Mellon
New York
$419M 1,469,495 -4,683 -0.3%
Norges Bank
13
Norges Bank
Norway
$410M 1,439,225 +61,691 +4%
Morgan Stanley
14
Morgan Stanley
New York
$408M 1,431,299 +125,448 +10%
Legal & General Group
15
Legal & General Group
United Kingdom
$390M 1,369,521 +10,974 +0.8%
Dimensional Fund Advisors
16
Dimensional Fund Advisors
Texas
$383M 1,345,742 -70,779 -5%
PAMS
17
Pictet Asset Management (Switzerland)
Switzerland
$356M 1,249,054 +140,688 +13%
Deutsche Bank
18
Deutsche Bank
Germany
$343M 1,205,183 -436,565 -27%
Amundi
19
Amundi
France
$339M 1,187,313 +609,020 +105%
T. Rowe Price Associates
20
T. Rowe Price Associates
Maryland
$321M 1,128,642 -959,714 -46%
Renaissance Technologies
21
Renaissance Technologies
New York
$316M 1,109,537 -154,300 -12%
UBS AM
22
UBS AM
Illinois
$310M 1,114,602 – –
BGC
23
Beutel, Goodman & Co
Ontario, Canada
$285M 999,346 +21,620 +2%
Invesco
24
Invesco
Georgia
$283M 992,006 -31,921 -3%
VanEck Associates
25
VanEck Associates
New York
$272M 955,657 +145,279 +18%
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